Home / 638,444.10-881,092.53-351,963.66

Finding the Fourth Proportional to 638,444.10, 881,092.53 and 351,963.66

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Solution

The fourth proportional to 638,444.10, 881,092.53 and 351,963.66 is: 485,731.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,444.10 : 881,092.53 = 351,963.66 : x
  2. Step 2: Convert to fraction form
    638,444.10/881,092.53 = 351,963.66/x
  3. Step 3: Cross multiply
    638,444.10x = 881,092.53 × 351,963.66
  4. Step 4: Simplify right side
    638,444.10x = 310,112,551,657.46
  5. Step 5: Solve for x
    x = 310,112,551,657.46/638,444.10
  6. Step 6: Final answer
    x = 485,731.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.